140. internal a. 内部的,国内的
(例)He worked in internal trade. 他的工作是做国内贸易。
141. beforehand ad. 预先,事先
(例)I had made preparations beforehand. 我预先作了准备.
142. racial a. 人种的种族的
(例)We should not have racial discrimination. 我们不该有种族歧视。
143. radiation n. 放射物,辐射
(例)Radiation reached unheard-of levels. 辐射作用已达到前所未有的程度.
144. radical a.根本的;激进的
(例)They called for a radical reform of our tax system. 他们要求对税收制度进行根本改革。
(例)radical political views 激进的政治观点
145. range n. 幅度,范围 v. (在某范围内)变动
(例)Several cars are available within this price range. 在这个价格范围内,有好几种汽车可供选购
(例)The childrens ages range from 8 to 15. 这些孩子们的年龄在8岁到15岁之间。
146. wonder n. 惊奇,奇迹 v. 想知道,对...感到疑惑
(例)No wonder you were late! 难怪你来晚了!
(例)I wonder who he is. 我很想知道他是谁。
147. isolate vt. 使隔离,使孤立
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